After blowing up an enemy gate with 4 nades i can rebuild the gate and can slap a 4 digit lock on the outside of an enemy base and render weeks of work useless. The locks should not fall on the ground and should be permenently locked to the gate. Please also concider allowing an instant unlock for those who have already entered a code, and changing the locks to 5 and 6 instead of 3 and 4.............:)